Operations Management
17th Edition
ISBN: 9781259142208
Author: CACHON, Gérard, Terwiesch, Christian
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 4, Problem 1C
Summary Introduction
Case summary:
Company X is a producer of high-end, kick scooter developers. The initial assembly line has begun with a three-step process. Due to the growth in demand the company has to change the assembly process.
To explain: The comments of the two experts.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
This four-step process loop is termed a machine cycle. Most individuals prioritise which machine cycle factors? Should I worry about replacing worn machine cycle parts? Can increasing the number of modules simplify switching between them?
Solvo produces three types of trucks on one assembly line: the long-haul (L), the short-haul (S), and the vocational truck (V). Next month the company has orders for 1,100 long-haul trucks, 1650 short-haul trucks, and 550 vocational trucks. Chris Riggs, the production manager for Solvo, wants to try uniform production and mixed-model sequencing.
Assuming 30 working days per month, what assembly sequence would you recommend, and how many times per day should the sequence be repeated. (Round answer to 0 decimal places)
Assembly sequence? (pick one)
a.vocational,vocational, vocational, long-haul, long-haul, short-haul
b.short-haul, long-haul, short-haul, vocational, short-haul, long-haul
c.short-haul, short-haul, long-haul, long-haul, vocational, vocational
How many times should sequence be repeated?
Four hundred and eighty minutes of production time are available per day. Scheduled production is 80 units per
day. What is the required cycdle time?
07 minutes
4 minutes
06 minutes
5minutes
8 minutes
Chapter 4 Solutions
Operations Management
Ch. 4 - Prob. 1CQCh. 4 - Prob. 2CQCh. 4 - Prob. 3CQCh. 4 - Prob. 4CQCh. 4 - Prob. 5CQCh. 4 - Which of the following statements about takt time...Ch. 4 - Prob. 7CQCh. 4 - Prob. 8CQCh. 4 - How does the target manpower change as the demand...Ch. 4 - What happens to the target manpower if the labor...
Ch. 4 - Which of the following actions does not relate to...Ch. 4 - Prob. 12CQCh. 4 - Prob. 13CQCh. 4 - Prob. 14CQCh. 4 - Specialization typically leads to a higher average...Ch. 4 - Prob. 16CQCh. 4 - Prob. 17CQCh. 4 - Prob. 18CQCh. 4 - Prob. 1PACh. 4 - Prob. 2PACh. 4 - Prob. 3PACh. 4 - Prob. 4PACh. 4 - Prob. 5PACh. 4 - Prob. 6PACh. 4 - Prob. 1C
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- Quasi-Tech Corporation produces specially machined parts. The parts are produced in batches in one continuous manufacturing process. Each part is custom produced and requires special engineering design activity (based on customer specifications). Once the design is completed, the equipment can be set up for batch production. Once the batch is completed, a sample is taken and inspected to see if the parts are within the tolerances allowed. Thus, the manufacturing process has four activities: engineering, setups, machining, and inspecting. Costs have been assigned to each activity using direct tracing and resource drivers as follows: Activity Expected Cost Activity Driver Activity Capacity Engineering $1,000,000 Engineering hours 5,000 hours Setups 900,000 Setups 200 setups Machining 2,000,000 Machine hours 25,000 machine hours Inspection 800,000 Inspection hours 2,500 inspection hours Quasi-Tech produces two models: Model C and Model D. The following table…arrow_forwardSuppose a final assembly is produced by assembling two components. THE The first component, A, is produced internally and goes through three process steps, which are stamping, forging and machining, with scrap estimates of 10%, 15% and 25%, respectively. For every three produced units of component A, two are used in the final assembly and one is separate to meet spare parts needs. The second component, B, which is used exclusively in final assembly, is purchased from a supplier external and inspected on arrival; 2% do not pass inspection. A unit of the component purchased is required for each final assembly. The final assembly process produces 5% of scraps. Spare parts demands for component A and final Su assembly match to 1,000 and 5,000 units, respectively. How many input units are needed for produce component A, and how many units of component B should the firm buy?arrow_forwardSolvo produces three types of trucks on one assembly line: the long-haul (L), the short-haul (S) and the vocational truck (V). Next month the company has orders for 1300 long-haul trucks, 1,950 short-haul trucks, and 650 vocational trucks. Chris Riggs, the production manager for Solvo, wants to try uniform production and mixed-model sequencing. Assuming 20 working days per month, what assembly sequence would you recommend and how many times per day should the sequence be repeated? (Round answer to 0 decimal place, e.g. 9.) Assembly sequence Sequence should be repeated___________________times.arrow_forward
- JCL Inc. is a major chip manufacturing firm that sells its products to computer manufacturers like Dell, Gateway, and others. In simplified terms, chip making at JCL Inc. involves three basic operations: depositing, patterning, and etching. • Depositing: Using chemical vapor deposition (CVD) technology, an insulating material is deposited on the wafer surface, forming a thin layer of solid material on the chip. Patterning: Photolithography projects a microscopic circuit pattern on the wafer surface, which has a light-sensitive chemical like the emulsion on photographic film. It is repeated many times as each layer of the chip is built. • Etching: Etching removes selected material from the chip surface to create the device structures. The table below lists the required processing times and setup times at each of the steps. There is unlimited space for buffer inventory between these steps. Assume that the unit of production is a wafer, from which individual chips are cut at a later…arrow_forwardAmong the tools of TOM, the tool ordinarily used to aid in understanding the sequence of events through which a product travels is a: Pareto chart flowchart check sheet Taguchi map poka-yokearrow_forwardSawing 20 min/unit Sanding 20 min/unit Drilling 32 min/unit Welding 30 min/unit Assembly 93 min/unit Assembly 93 min/unit Assembly 93 min/unit A production process is shown in the figure above. The drilling operation occurs separately from, and simultaneously with the sawing and sanding operations. Welding starts when both drilling and sanding operations have been completed. After welding, a product needs to go through only one of the three assembly operations (the operations are in parallel, where parallel lines perform the exact same operation). Considering the process times at stations, what is the process time of the system (in min/unit)?arrow_forward
- Background: The Toyota Production System (TPS) was developed by the Toyota Motor Corporation in the 1950s as a way to improve productivity and efficiency in their manufacturing processes. The system is based on two main principles: Just-in-Time (JIT) production and Jidoka. JIT production involves producing only what is needed, when it is needed, and in the amount needed. Jidoka is a system of detecting and correcting problems in the manufacturing process as they occur. In the 1970s, Toyota's TPS began to attract attention from other companies who were interested in improving their own manufacturing processes. One of the first companies to adopt the TPS was Vicunha, a Brazilian textile manufacturer. Initiatives and Process Improvement Methods: Vicunha had been struggling with high inventory levels, long lead times, and poor quality. The company's management decided to adopt the TPS and worked closely with Toyota to implement the system. The implementation involved the following…arrow_forwardSmooth Chin Device Company The Smooth Chin Device Company is a manufacturer of high--end electric razors. These razors are produced using a machine--paced process. For each razor, a tray with components enters the process at the beginning of a conveyor belt. The tray then passes through the six steps (consisting of various tasks) explained in the table below. Workers perform the assembly operations on the moving tray. The last step consists of an inspection of the then fully assembled razor. The activity times of the process are as follows: Station Tasks A Preparation 1. Lay out chassis [12 sec] 2. Lay out screws [15 sec] 3. Lay out all other components [17 sec] Total time for A: 44 sec B Assembly 4. Perform task AS1 [10 sec] 5. Perform task AS2 [10 sec] 6. Perform task AS3 [20 sec] Total time for B: 40 sec C Assembly 7. Perform task AS4 [14 sec] 8. Perform task AS5 [16 sec] 9. Perform task AS6 [20 sec] 10. Perform task AS7 [5 sec] Total time for C: 55 sec…arrow_forwardSmooth Chin Device Company The Smooth Chin Device Company is a manufacturer of high--end electric razors. These razors are produced using a machine--paced process. For each razor, a tray with components enters the process at the beginning of a conveyor belt. The tray then passes through the six steps (consisting of various tasks) explained in the table below. Workers perform the assembly operations on the moving tray. The last step consists of an inspection of the then fully assembled razor. The activity times of the process are as follows: Station Tasks A Preparation 1. Lay out chassis [12 sec] 2. Lay out screws [15 sec] 3. Lay out all other components [17 sec] Total time for A: 44 sec B Assembly 4. Perform task AS1 [10 sec] 5. Perform task AS2 [10 sec] 6. Perform task AS3 [20 sec] Total time for B: 40 sec C Assembly 7. Perform task AS4 [14 sec] 8. Perform task AS5 [16 sec] 9. Perform task AS6 [20 sec] 10. Perform task AS7 [5 sec] Total time for C: 55 sec…arrow_forward
- Which process type is characterized by general purpose resources that can produce a wide variety of products? Group of answer choices Job Shop Batch Assembly Line Continuous Linearrow_forward15-15 Kitty Products caters to the growing market for cat supplies, with a full line of products, ranging from litter to toys to flea powder. One of its newer products, a tube of fluid that prevents hair balls in long-haired cats, is produced by an automated machine that is set to fill each tube with 63.5 grams of paste. To keep this filling process under control, four tubes are pulled randomly from the assembly line every 4 hours. After several days, the data shown in the following table resulted. SN = Sample number SN x¯ R1 63.5 2.02 63.6 1.03 63.7 1.74 63.9 0.95 63.4 1.26 63.0 1.67 63.2 1.88 63.3 1.39 63.7 1.610 63.5 1.311 63.3 1.812 63.2 1.013 63.6 1.814 63.3 1.515 63.4 1.716 63.4 1.417 63.5 1.118 63.6 1.819 63.8 1.320 63.5 1.621 63.9 1.022 63.2 1.823 63.3 1.724 64.0 2.025 63.4 1.5 Set control limits for this process and graph…arrow_forwardThese four phases make up a machine cycle, which is also known as a process loop. What percentage of a machine's cycle time do you value the most? Should I be concerned about replacing parts of the machine cycle when they wear out? Is the problem of switching modules improved by adding a second module?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Operations ManagementOperations ManagementISBN:9781259667473Author:William J StevensonPublisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...Operations ManagementISBN:9781259666100Author:F. Robert Jacobs, Richard B ChasePublisher:McGraw-Hill Education
Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...Operations ManagementISBN:9781478623069Author:Steven Nahmias, Tava Lennon OlsenPublisher:Waveland Press, Inc.
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,
Operations Management
Operations Management
ISBN:9781259667473
Author:William J Stevenson
Publisher:McGraw-Hill Education
Operations and Supply Chain Management (Mcgraw-hi...
Operations Management
ISBN:9781259666100
Author:F. Robert Jacobs, Richard B Chase
Publisher:McGraw-Hill Education
Purchasing and Supply Chain Management
Operations Management
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Cengage Learning
Production and Operations Analysis, Seventh Editi...
Operations Management
ISBN:9781478623069
Author:Steven Nahmias, Tava Lennon Olsen
Publisher:Waveland Press, Inc.